Device for attaching roller-colters to plows



(No Model.)

H. H. SATER.

DEVICE EOE ATTAGEING ROLLER GOLTEES To PLOWS. No. 252,902. Patented Jan.31,1882".

Ilstrrnlf Sterns AarrnN'r OFFICE.

nass n. sarna, or DUBUQUE, iowa.

DEVlCE FOR ATTACHING ROLLER-COLTVERS TO FLOWS.

SPECIFICATION forming part of Letters Patent No. 252,902, dated January31, 1862,

l Application filed September 19, 1881. (Nomodel.) I

ATo all whom lit may concern:

Beit known that I, HANS H. Sarsina eitizen of the United States,residing at Dubuque,

in the county ot' Dubuque, State yot' Iowa, have adjustment of -the sameupon the plow-beam,v

and a vertical adjustment to raise or lower the colter; and it-rconsistsin the particular devices hereinafter described for attaching` thecolter to and adjusting it upon the plow-beam.

In the drawings, Figure Al is a perspective view of plow, showingcolterattached, Fig.2,

a perspective view ot' the attaching device in position upon theplow-beam; Fig.3,a vertical transverse section through supporting-arm;Fig. 4, a horizontal section inline x a0 of Fig. 3; Figs. 5,6, 7, and 8,detail views ot' supportingarm and connections.

In the drawingsis shown a rolled-steel beam, as indicated at F, thoughthe devices hereinafter described can be adapted to a plow-beam of anyform or material.

To the beam F is attached the arm or bracket A, which supportsthccolter, and is so connected to the beam as to allow an adjustmentlongitudinally upon it. r[he end ot' the arm A that isin contact withthe beam F is. formed to tit upon and partially embrace it, havingabroad beari11g-face,0,' shaped to correspond with the form of one sideof the beam, and a lower projection, O2, extending beneath the beam andslightly upon the other side in a rib, C3. beam and forms thelugc,through which passes the lower vertical e'nd, b, of the strap-bolt B.rlhe strap-bol t B is bent to conform to the shape ofthe side of thebeam against which itbears, and its upper end, b', is bent at rightangles and passes longitudinally through the lug c upon the arm A, whichprojects above the top edge ofthe beam. The threaded ends Q b of thestrap-bolt B are secured by nuts d d',

which, when tightened against the lugs c cf,

clamp the arm A firmly to the beam. The arm A is readilyadjusted uponthe beam by loosen- The projection G2 extends beyondthe ing the nuts dd' and sliding the. arm to the required position, where it is againclamped. In the arm A is a longitudinal slot, G, and its face isprovided with vertical serrationsfj".

'lhe cylindrical colter-stem H rests in a concave seat, G, which hasupon its rear surface serrations g g', corresponding with serrations ffon arm A. The colter-stem and its seat are encircled by an eyebolt, D,the shank ofo which passes through the slot G,and by a nut., lt, whichbears againstthe back ot' the arm A, are clamped against the face of thearm A, the serrations ff and g g interlocking and preventing any Sidemovement of the colter. The colter can be readily adjusted laterally, ornearer to or farther from the beam, by loosening the nut h until theserratio'ns are disengaged, and sliding the eyeholt, with the seat andcolter, to thedesired position upon the arm. In the face ofthe arm A isa recess or sunken portieri, Land upon the rear of C a projectingportion, 1'., of corresponding depth, so that when the parts are clampedtogether the projection li comes to a bearing upon the face of therecess I. This serves to give a rmer bearing to the seat,`and theprojection t', resting upon the projecting lower edge of the recess I,prevents the seat Irom fallingoutofplace when the eyeb'olt is loosenedfor the purpose of adjusting the colter. The concave seat C embracesabout otie-half ot' the colte-r-stem, and its upper portion, 7c, is madesmaller-and round'- ed, so that the eye of the bolt D can be passed overthe colter-stem and the end of the seat to its place.l The colter-stemis held in its place in its seat byfriction only, and the colter canreadily be adjusted vertically by loosening the nut upon the eyeboltslightly and sliding the colter-stem up or down in the seat C.

The arm A is preferably made ot' malleable iron, and has deep lianges aa extending backward to the bearing-face C', so as togive the requisitestrength to counteract the transverse strain upon the arm. Thebearing-tace C' extends backward along the beam from the points ofattachment ofthe strap-bolt,so as to give an extended bearin g upon theside of the beam and lessen the strain upon the strap-bolt B. A raisedrim or ange,j, extends around the slot G on the rear face ot' A, toallowaconvenieut length to the lstem of the eyebolt D.

IOO

or bracket, A, provided with the extended bearing-fece C', projectionC2, with rib C3, ztnd the flanges ce and a', substantially as shown anddescribed.

3. rlhe plow-beam F,conibined with an arm or bracket, A, having the.bearinglfnce C', pro' jection C2, nnd lugs a and a', in combination withthe strap-bolt. B, substantially :is shown und described.

H. II. SATER.

Witnesses:

WM. O. TIBBALs, ULLMM DYER.

